Lock



Nov. 27, 1928. v 11,693,583

F. CONLY LOCK Filed Dec. 28, 1926 FI GJ. F/G.2.

I Arroff Patented Nov. 27, 1928.

,. W's dus LOOK.

7 Application filed December 28, 1926. Serial No 157.582.

This invention relates to looks, such as are primarily used for doors or the like and of the mortise type, and one feature of the invention is the provision of means for operating the locking belt of the lock in dependently of the ordinary key, whereby the bolt may be released in the event of' a lost key, and withoutreinoving any parts of the look from the door;

A further feature of the invention is in so arranging the boltreleasingmechanism that it may be operated from either side ofthe door! A further feature of the invention is in so arranging the bolt operating mechanism that it will normally be excluded from view. although permanently attached with the look.

A further feature of the invention is in so constructing the bolt operating mechanism that it may be attached to an old lock or furnished as a built-in part of a new lock. 7

Otherjobjects and advantages will be hereinafter more fully set forth and pointed out in the accompanying specification.

In the accompanying drawing which is made a part of this application Figure'l is a side elevation of a portion of a door with the lock mechanism attached thereto. 7

Figure 2 is a vertical transverse sectional 'view through the door and lock.

Figure 3 is a side elevation of the lock re-- -moved from the doorwith parts of the casing broken away. I

Figure 4 is an elevation of one face of the lock. 1 I

Figure 5 is a perspective view of thelocking bolt and operating mechanism therefor.

Figure 6 is a perspective View of the looking bolt operating means, and,

Figure 7 is an elevation of an operating means for the bolt operating mechanism. Referring to the draw ng, 1 indlcates the door, which may be of any preferred con-.

struction, 2 the lock therefor and 3 inclicates the locking bolt used for securing the door in closed position.

It frequently occurs that the regulation key for locking'or-unlocking the door becomes lost or misplaced, thus necessitating the employment of a locksmith or the defacing of the door or casing in order to release the locking bolt but, by employing this invention these objectionable features are entirely overcome.

In addition tothe key way 4 in the bolt the bolt, with which cooperates 3', an auxiliary way or notch 5 is formed in a tongue 6, carried by a shaft 7, the tongue (3 moving the bolt to open or closed position when the shaft 7 is rotated. The shaft '4' extends transversely through the lock 2 and has its ends projecting a distance beyond each face thereof and the projecting ends are preferably provided with notches 8. Cooperating with the shaft 7 is a key 9, preferably in the form of a wing nut, said key having a pin 10 extending across its inte 'ior for engagement with the notches 8, so that when the key is rotated the shaft 7 wi l be rotated and they bolt 3 moved to locked or unlocked position.

Although the device is used primarily for releasing the locking bolt, it may be used for locking the bolt, and when so used, means is provided for closing the ordinary key slot in the lock casing, consisting of a plate 11, slidably mounted on one inner wall of the lock casing, said plate having a notch 12, with which engages a tongue 18, on the shaft 7, so that when the bolt 3 is operated, the plate 11 will be simultaneously operated. The plate 11 has a key socket l i, which moves to registration with the key socket 15 in the lock casing, when the bolt 3 is in unlocked position and is moved out of registration therewith when the bolt is moved to locked position by the operation of the shaft 7. The plate 11 is not operated however, when the ordinary key is used for moving the bolt 3 into or out of locking position. The moving of the plate 11 in one direction, as when the bolt 3 is moved to locked position by rotating the shaft 7, will move the key socket 14 out of registration with the key socket 15, hence it will be impossible to insert the ordinary key for releasing the bolt 3.

The ends of the shaft 7 enter cavities 16 in the faces of the door 1, and these cavities are so placed that they will be covered by the ordinary face plates 17, of the lock, thus excluding the bolt operating mechanism from view, but when it is desired or necessary to operate the locking bolt 3, otherwise than by the use of the ordinary key, the screws 18 are released from the face plate 17 and the lower end of the plate swung laterally until the cavities are exposed. The key 9 may then be utilized for operating the locking bolt 3 to move it into or out of locking position.

The key 9 may be introduced over the end of the shaft 7 and left in that position, as

the cavities 16 are of suflicient depth to accommodate the key without striking against the plates 17, or it may be removed and carried in'the pocket, or placed in some convenient place. It Will be uneerstood of course, that any suitable instrument, other than the icy 9, may be used for rotating the shaft '4'.

This invention can be very cheaply nianufactured and readily applied to use and en tirely excluded from View, thus giving no indication to any one not acquainted with the structure of the lock, that the bolt could be unlocked Withoutemploying; the ordinary door key.

lVh at I claim is l. The combination with a lock including face plates and having a key operated locking bolt, of means independent of the key adapted to move said bolt to locked or unlocked iosition said indeiendent lockin a l a means being positioned below said face plates for excluding said il'lClQPQHCk-Ellt bolt op erating means from View.

2. The combination with a lock including face plates and a key operated locking bolt, of a shaft extending transversely through said lock, means on said shaft for engaging and operating said bolt- When the shaft is rotated, and means for ope -ating said shaft,

said shaft operating means being); concealed from View by said face plates 3. The combination with a lock including race plates and a locking bolt, of a shaft extending transversely through said look, a tongue on said shaft adapted to engage and operate said bolt, and means for operating said shaft, said shaft and operating means therefor being ezcluded from View by said taco plates. 7

l. The combination with a lock having a key operated locking bolt therein, and an opening to receive said key, of means Within the lock for operating said bolt, and means for covering said key opening When the bolt is moved by said means to locked position for prci 'enting the insertion of said key.

In testimony whereof I hereto afli my signature.

FRANK CONLY. 

